Home / 679,699.49-1,019,483.42-206,388.95

Finding the Fourth Proportional to 679,699.49, 1,019,483.42 and 206,388.95

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Solution

The fourth proportional to 679,699.49, 1,019,483.42 and 206,388.95 is: 309,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,699.49 : 1,019,483.42 = 206,388.95 : x
  2. Step 2: Convert to fraction form
    679,699.49/1,019,483.42 = 206,388.95/x
  3. Step 3: Cross multiply
    679,699.49x = 1,019,483.42 × 206,388.95
  4. Step 4: Simplify right side
    679,699.49x = 210,410,106,466.85
  5. Step 5: Solve for x
    x = 210,410,106,466.85/679,699.49
  6. Step 6: Final answer
    x = 309,563.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.